<template>
   <div class="todo-header">
    <input type="text" placeholder="请输入你的任务名称，按回车键确认" @keyup.enter="addItem"
        v-model="title">
  </div>
</template>
<script>
export default {
    props:{
        addTodo:["addTodo"]
    },
    data(){
        return{
            title:'',

        }
    },
    methods:{
        addItem(){
            const title=this.title.trim()
            if(!title){
                alert("必须输入")
                return
            }
            const todo={
                title,
                complete:false
            }
            this.addTodo(todo)
            this.title=""
        }
    },
}
</script>
<style>
 .todo-header input {
    width: 560px;
    height: 28px;
    font-size: 14px;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 4px 7px;
  }

  .todo-header input:focus {
    outline: none;
    border-color: rgba(82, 168, 236, 0.8);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.75), 0 0 8px rgba(82, 168, 236, 0.5);
  }
</style>


